Bolster construction.



' PAT"- ENTED JULY 3, 1906.

E. I. D oDDs. BOLSTER CONSTRUCTION.

APPLICATION FILED JULY 24. 1005.

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IME/z the beams 1.,

UNITED STATES PATENT OFFICE.

ETHA'N I. DonDs, OF PULLMAN, ILLINOIS. AssIcfNORl "ro THE `PULIMAN COMPANY, O F CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

Specification of Letters Patent.

Patented July 3, 1906.

Application and my 24,1905. sam No. massa.

To all whom it may concern.

Be it known that I, ETHANI. DODDs, a citizen of the United States, residing at Pullman, in the county of Cook` and State of Illinois, have invented .certain new' and useful Improvements in BolsterConstructions, of which the following is a specification.

' My present invention is directed to improvements in bolster constructions for cars and involves the use of smaller bolster-beams than have been usual in combination with connecting and spacing means at their central portions, which at the same time act as the bearing members.

My im rovements parative y lar e In ermit of the use'of comern side bearings without `unduly e evating the car or sacrificing'.

strength.

In the accompanying drawings I have illustrated a construction embodying the principle of my invention.

Figure 1 represents an elevation of the same. Fi 2 is an enlarged. section on the line 2 2 of Fig. 1. Fig. 3 shows modified forms of bolster-beams, and Fig. 4 is a view similar to Fig. 2 with some modifications.

The body-bolster com rises two spaced channel members 1 1, tot e upper flanges of which is secured the plate 2, the main floor of the car-3 resting thereon. The outer ends of the beams 1 1 are connected and spaced apart by means of cross members 4, and the central portions are connected, strengthened, and spaced apart by the downwardly-bellied member 5, having the integral u standing flanges 6 riveted to the insides of t e webs of Transverse webs I'connect the flanges 6 with the central bearing-sleeve S, throu h which 4asses a king-ipin 25. Horizonta outward y-extending anges 9 integral with the members 5 are riveted to the ower flanges of the channel-beams 1.

The lower central portion of the part 5 constitutes a male bearing-plate 10, which vcooperates with the female center-plate bearing 17 of a plate 16, the latter, together with an underlyIng compress on-plate 15, being riveted to the upper flanges of the channeltruck bolster-beams 13 and 14. Between the latter is a strengthening and spacing member 18, which is in some respects similar to the member 5. ItV has the flan es 20 extending upwardly in contact with t e insides of the webs of the truck-bolster 13 and extending between s I 14 and riveted thereto. It also has the outstanding flanges 19 riveted to the lower flanges ofthe channel-beams 13 and 14. The bellIed portion 18 has at its central part a kin -pin bearing-sleeve 2 2, which is secured to t e other portions of the member 18 by means of the integral upper and lower connecting-plate portions 23 and 24 and the webs 21. v

It is evident that the invention may be embodied in bolsters having bolster-beams of other forms than the channel-beams shown in Fig. 2. For instance, said bolster-beams might take the form of I-beams 11 or Z- beams 12 (shown in Fig. 3) or other standard rolled forms. In Fi 4 I have illustrated a structure similar to t t shown in Fig. 2, but employing the Z-beams 12 in the body-bolsterin lieu of the channel-beams 1, such a construction involving a slight .modificatlon of the reinforcingmember 5 by the formation of integral inwardly-extending grooved members 5* to receive the lower flan es of the Z- beams in lieu of the outward y-projecting flan es 9 of Fig. 2.

arious other modifications in the details of form and construction might be4 made by those skilled in the art Wit out departing 'from the substance of the invention as defined in the following claims'.

I claimv 41. In a bolster, the combination .of two spaced members, and a 'connecting member having integral center-plate bearing, fasten'- ing, and kingin bearing portions, substantially as descri y 2. In a bolster, the combination of two spaced members, and a bellied connecting ,fastening andkin -pin bearing portions, :Ilstantially as descri ed.

, 3. In a bolster, the combination of two spaced members and a bellied connecting member having integral center-plate bearmember having integralcenter-plate bear-- ing, fastening, and king-pin bearing portions,

said fastening and king-pm bearing portions aced members, substantially as desem IOO 4.4 In a bolster, .the combination oftwo spaced beams, each having a flange, and a connecting member having a center-platev bearing ortion, integral flanges secured to the `insi es ofthe spaced` beams, integral flanges riveted to the beam-flanges', and an.

ros

,integralking-pln bearing portion, substanspaced beams,

tialiy as described. 5. In a car-bolster, the combination of spaced standard rolled beams, and a connect- "ing member having a center-plate bearing -portion, integral flangesv riveted totlgleinv sides of the Webs of the spaced beams, integral flanges riveted to the flanges ofms'aixd. beams, and an integral king-pin bearing portion, substantiallyas described.

. 6. In a bolster, the Combination ospaced beams Aand a bellied connecting member riveted tothe spacedV beams and having an integral king-pin bearingl portion, Substantially as described.

7. In a car-bolster, the combination oi' a` compression-plate and a bearing-plate riiteted to said beams, and a connecting member riveted to said beams canoes AETHAN r. Dones'.

Witnesses: v

VALTER M. FULLER, FREDERICKl C. GooDWIN. 

